Home / 5,015.19-6,921-2,777.10

Finding the Fourth Proportional to 5,015.19, 6,921 and 2,777.10

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Solution

The fourth proportional to 5,015.19, 6,921 and 2,777.10 is: 3,832.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,015.19 : 6,921 = 2,777.10 : x
  2. Step 2: Convert to fraction form
    5,015.19/6,921 = 2,777.10/x
  3. Step 3: Cross multiply
    5,015.19x = 6,921 × 2,777.10
  4. Step 4: Simplify right side
    5,015.19x = 19,220,309.10
  5. Step 5: Solve for x
    x = 19,220,309.10/5,015.19
  6. Step 6: Final answer
    x = 3,832.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.